Standard form: Ax + by =C
so
y+ 1 = 3/4(x - 16)
4(y + 1) = 3(x - 16)
4y + 4 = 3x - 48
3x - 4y = 52
Answer is D. last option
3x - 4y = 52
Consider the expression 
This expression contains two terms with
group them:

Now simplify term 
Now 
This expression is defined for all x.
Answer:
114
Step-by-step explanation:
Since DE and EF are equal, DEF is an isosceles triangles.
In isosceles triangle, two angles are equal.
So,
∠F = ∠D = 33
Sum of interior angles in a triangles is 180,
∠D + ∠F + ∠E = 180
33 + 33 + ∠E = 180
∠E = 180 - 33 - 33
∠E = 114